By CAROLYN THOMPSON Associated Press BUFFALO, N.Y. (AP) — High school biology teacher Kelly Chavis knew smartphones were a distraction in her class. But not even her students realized the psychological toll of their devices until an in-class experiment that, of course, was then spreading on social media. For one class period, students used a whiteboard to tally, in real time, every Snapchat, Instagram, text, call or other notification that popped up. Students were […]
